Junior College: TransCanada Corporation has filed suit against the US government, over the Obama Administrations denial of a permit to build the Keystone XL pipeline. The companys lawsuit in federal court in Houston does not seek legal damages but wants the permit denial invalidated and seeks a ruling that no future president can block construction. In its notice of intent to initiate the NAFTA claim, TransCanada said that the USA government concluded five times that the pipeline would not have a significant...